* {
    margin: 0;
    padding: 0;
}

.top {
    /*默认情况下div宽度为100%，高度为0*/
    background-image: url("../img/banner_qtah.jpg");
    /*width: 1000px;*/
    height: 600px;
    /*width: 1920px;*/
    background-size: 100% 100%;
    color: white;
}

/*>符号 只代表当前子类的div 不包括孙子*/
.top > div {
    /*height: 200px;*/

}

.top > div {
    display: flex;
    justify-content: center;
}

.top > div > div {
    width: 1000px;
}

.top > div:first-child > div {
    height: 141px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top > div:nth-child(1) > div > div:nth-child(2) {
    display: flex;
    align-items: center;
}

.top > div:nth-child(1) > div > div:nth-child(1) {
    height: 141px;
    width: 204px;
}

.top > div:nth-child(1) > div > div:nth-child(1) > img {
    height: 100%;
    width: 100%;
}

/*------------------导航----------------------------*/
.top > div:nth-child(2) {
    height: 50px;
    background-color: rgb(230, 145, 55);
    /*display: flex;*/
    /*justify-content: center;*/
}

.top > div:nth-child(2) > div {
    /*border: 1px solid red;*/
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.top > div:nth-child(2) > div > div {
    height: 50px;
    line-height: 50px;
    padding: 0 20px;
}

/*对每一个导航div设置一个鼠标经过事件*/
.top > div:nth-child(2) > div > div:hover {
    background-color: white;
    color: rgb(230, 145, 55);
    cursor: pointer;
}

/*-----------------guanggao-----*/
.top > div:nth-child(3) > div {
    /*border: 1px solid red;*/
}

.top > div:nth-child(3) > div > div:nth-child(1) {
    /*border: 1px solid blue;*/
    /*padding: 20px 0;*/
    font-size: 50px;
    /*margin-top: 50px;*/
    margin: 40px 0 20px;
}

.top > div:nth-child(3) > div > div:nth-child(2) > div {
    line-height: 25px;
}

.top > div:nth-child(3) > div > div:nth-child(3) > div {
    /*line-height: 50px;*/
    font-size: 25px;
}

.top > div:nth-child(3) > div > div:nth-child(3) > div:first-child {
    display: flex;
    align-items: flex-end;
    /*height: 50px;*/
}

/*.top > div:nth-child(3) > div > div:nth-child(3)>div:first-child>div:nth-child(2){*/
/*    color: rgb(230, 145, 55);*/
/*    font-size: 35px;*/
/*}*/
/*.top > div:nth-child(3) > div > div:nth-child(3)>div:first-child>div:nth-child(4){*/
/*    color: rgb(230, 145, 55);*/
/*    font-size: 35px;*/
/*}*/
/*偶数 even   奇数  odd*/
.top > div:nth-child(3) > div > div:nth-child(3) > div:first-child > div:nth-child(even) {
    color: rgb(230, 145, 55);
    font-size: 35px;
}

.top > div:nth-child(3) > div > div:nth-child(3) > div:nth-child(2) {
    color: rgb(230, 145, 55);
    font-size: 35px;
    text-indent: 1.5em;
}

/*----------------公共的css-----------------*/
.middle{
    display: flex;
    justify-content: center;
    margin: 50px 0;
}
.middle>div{
    width: 1000px;
    border:1px solid red;
}
.title {
    color: rgb(230, 145, 55);
    font-size: 30px;
    border-bottom: 1px solid red;
    padding: 10px;

}
/*
码云：
1.注册账号
2.安装git
3.在idea里面按住gitee，安装完成需要重启idea
4.将项目加入gitee
5.将要上传的文件加入gitee
6.点击idea右上角的绿色的勾勾，提交
7.提交到服务器
8.在码云上面创建仓库，得到地址




*/